/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package pe.gps.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import pe.gps.log.Log;

/**
 *
 * @author john
 */
@WebServlet(name = "login", urlPatterns = {"/login"})
public class GPSLoginServlet extends HttpServlet {

    private String valid_user;
    private String valid_password;

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            String action = request.getParameter("action");
            switch (action) {
                case "1":
                    String user = request.getParameter("user");
                    String password = request.getParameter("password");

                    if (user.equals(valid_user) && password.equals(valid_password)) {
                        request.getSession().setAttribute("user", user);
                        System.out.println("go to->gps");
                        response.sendRedirect("gps");
                    } else {
                        System.out.println("go to->login");
                        response.sendRedirect("login");
                    }
                    break;
                case "2":
                    request.getSession().removeAttribute("user");
                    response.sendRedirect("login");
                    break;
            }

        } catch (IOException ex) {
            Log.log("[Login]Ex: " + ex, Log.ERROR);
            response.sendRedirect("login.jsp");
        } finally {
            out.close();
        }
    }

    @Override
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
        valid_user = "admin";
        valid_password = "acceso123";
//        valid_user = config.getServletContext().getAttribute("valid_user").toString();
//        valid_password = config.getServletContext().getAttribute("valid_password").toString();

        config.getServletContext().removeAttribute("valid_user");
        config.getServletContext().removeAttribute("valid_password");
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
